Blueberry FAQ and Information
How many species of blueberry are there?
For information on blueberry species, please visit the USDA website:
http://plants.usda.gov/java/ClassificationServlet?source=display&classid=VACCI
Why is the blueberry blue?
The blueberry derives its bold coloring form the high content of
anthocyanin. Anthocyanin is a water soluble pigment that imparts colors ranging
from blue to shades of red.
Is blueberry color important?
Blueberry color is an important quality factor influencing fresh-market
value and the suitability of the berries for processing. Their intense red to blue
color, and high pigment content, makes them a good candidate for colorant ingredients
for foods. Full blueberries with a light gray-blue color are best and a berry with
any hint of red isn't fully ripened.
Are larger blueberries better?
Look for fresh blueberries that are firm, dry, plump, smooth-skinned
and relatively free from leaves and stems. Size is not an indicator of maturity
but color is - berries should be deep purple-blue to blue-black; reddish berries
aren't ripe, but may be used in cooking.
How do you properly freeze blueberries?
After you buy fresh blueberries, place them in a single layer on
a cookie sheet. Do NOT wash blueberries before freezing them. After they are frozen,
transfer them to an air tight plastic bag or freezer container for storage. Keep
them at 0 to -10 degrees F (-18 to 23 degrees C) Ensure you do not re-freeze them
after they thaw! Wash the blueberries prior to use.